2.90 - Spin tool with linked duplicates
The first method would be to use Array / Object Offset:

Create your cube, go in Edit mode, move it away from its origin:




Create an empty at the exact same point as the cube origin:



Give your cube an Array modifier, choose a Count of 12, deactivate Relative Offset, enable Object Offset and choose the empty as Object:



Rotate the empty 30° on the Z axis, the cube instances rotate around:



You can select the cube again and, in Edit mode, move/edit it. Use the Array Merge option if you want the instances to stick to each other.


The second method would be to use Instancing:

Create a 12 vertex circle, extrude inwards, give it Instancing &gt; Faces:



Create your cube, parent it to the circle, it will repeat circularly: